Next week marks the launch of Destiny 2‘s first expansion, Curse of Osiris. Coinciding with that, the first “season” of content will come to an end, bringing a refresh to certain aspects of the game. For now, the final weekly reset of Season 1 has taken place, introducing a new (and familiar) Nightfall Strike, Flashpoint, and Eververse lineup.

This week marks your final chance to earn Clan XP before your Clan level is reset for Season 2. Reaching the maximum level before the season ends will unlock this season’s Clan Staff. Additionally, the items available in Bright Engrams will rotate for Season 2, so you’ll want to unlock as many of those as you can now if there’s something you’ve been wanting. The Spicy Ramen Exotic emote, specifically, will no longer be available after Season 1.

In terms of what’s new this week, the Flashpoint has rotated to the European Dead Zone, and the new Nightfall Strike is Savathun’s Song. It features the same Modifiers we saw during a previous instance of this. Timewarp – Anomalies makes it so that during the Strike, floating objects will appear. Destroying each one adds an additional 30 seconds to the timer, which should make it a bit easier to finish.

Also active is Momentum. This Modifier makes it so that your health and shields only regenerate when you’re on the move; in other words, taking cover behind an object is not a viable strategy for recovering after taking damage. Sprinting causes shields and health to regenerate more quickly, so ensure you’re always on the move.

As with the modifiers, the three Challenges are what we’ve seen before on this Strike. The first is Speed Of Dark, which is always active and asks you to complete the Nightfall with five minutes or more on the clock, making those anomalies all the more important. Unbroken tasks you with finishing with fewer than three total deaths during the Strike. And the last of the three, The Best Defense, requires shooting 15 projectiles during the final boss fight before you actually kill Savathun’s Song.

Powerful Gear rewards are what you’ll receive for completing the Nightfall. There aren’t many activities you can complete to get your hands on those. What makes them particularly desirable is that they’re an easy way to increase your Power level above 265, which can be difficult to do otherwise. This Nightfall will be available until the next weekly reset, which occurs at 1 AM PT / 4 AM ET / 9 AM BST / 8 PM AEST on Tuesday, December 5. Curse of Osiris also launches that day on PC, PS4, and Xbox One.

For those who haven’t unlocked access to the Nightfall, you’ll need to first finish two Strikes and get to about Power level 240. At that point, you can speak to Zavala and he’ll provide access to them from the Director. Just keep in mind that there isn’t standard matchmaking–but you can make use of Guided Games to be matched up with other players.